Chalcoalumite (classic AZ) Kay Robertson Coll.

Grand View Mine, Grand Canyon, Coconino County, Arizona
4.8 x 3.6 x 2.3 cm
Start Time: 03/20/2020 4:30:00 pm (CDT)
End Time: 03/26/2020 6:30:00 pm (CDT)
Auction Closed
Winning Bid: $310

Item Description

A crust of beautiful turquoise-blue bubby chalcoalumite botryoids covers the sculptural miniature matrix on this classic and excellent specimen from the extinct Grand View Mine. This Cu-U mine was only active from 1893-1907. A few specimens were collected in the early 1970s and the mine lies within the current boundary of the Grand Canyon National Park and is off limits for over 20 years, to collectors. Ex Kay Robertson Collection # 6824 and acquired as a gift from Wayne Leicht in the early 1970s, soon after it was collected. Kay is a prominent California collector, who specialized in European classics (see the article in the March-April, 2007 Mineralogical Record and the 50+ page article in the German Magazine "Mineralien-Welt" November-December 2017). A classic and colorful example from this famous Arizona mine.

Bidding History

Bidder Bid Amount Bid Time
pack_llama $310 03/26/2020 5:36:08 pm (CDT)
Eti25 $300 03/26/2020 5:36:07 pm (CDT)
pack_llama $270 03/26/2020 5:34:57 pm (CDT)
Eti25 $260 03/26/2020 5:34:56 pm (CDT)
pack_llama $250 03/26/2020 5:34:37 pm (CDT)
Eti25 $240 03/26/2020 5:34:36 pm (CDT)
pack_llama $230 03/26/2020 5:34:18 pm (CDT)
Eti25 $220 03/26/2020 5:34:17 pm (CDT)
pack_llama $210 03/26/2020 4:57:48 pm (CDT)
Eti25 $200 03/26/2020 3:15:16 pm (CDT)
tigerminerals $190 03/26/2020 3:15:15 pm (CDT)
Eti25 $180 03/26/2020 12:06:35 pm (CDT)
tblackwood1 $170 03/26/2020 11:58:17 am (CDT)
Eti25 $160 03/26/2020 11:58:07 am (CDT)
tblackwood1 $150 03/26/2020 11:58:06 am (CDT)
Eti25 $140 03/26/2020 11:57:18 am (CDT)
tblackwood1 $130 03/26/2020 11:57:18 am (CDT)
tblackwood1 $120 03/26/2020 11:56:06 am (CDT)
Eti25 $110 03/26/2020 11:55:39 am (CDT)
tblackwood1 $100 03/26/2020 11:55:04 am (CDT)
Eti25 $90 03/26/2020 11:54:34 am (CDT)
tblackwood1 $80 03/26/2020 11:54:11 am (CDT)
Eti25 $70 03/26/2020 11:53:41 am (CDT)
tblackwood1 $60 03/26/2020 11:40:43 am (CDT)
Eti25 $50 03/22/2020 1:07:23 pm (CDT)
jar7709 $45 03/21/2020 8:26:43 pm (CDT)
tmr $43 03/21/2020 8:26:43 pm (CDT)
tmr $33 03/21/2020 2:44:17 pm (CDT)
Tmdery $30 03/21/2020 2:44:17 pm (CDT)
Tmdery $10 03/21/2020 4:17:58 am (CDT)